A circuit breaker collective packaging structure suitable for pallet shipment

Abstract

The utility model discloses a kind of circuit breaker collective packaging structures suitable for tray delivery, comprising: tray;Stack, be set on the tray, the stack includes by bottom to top setting bottom layer buffer bearing layer, at least one intermediate buffer bearing layer and buffer top surface, the buffer bearing layer and intermediate buffer bearing layer are all included buffer frame, multiple containing cavities are formed by buffer separation structure in the buffer frame and are separated, the shape and size of the containing cavity are adapted to circuit breaker;Wrapping layer, the stack is covered;Fastener, the stack is fastened with the tray connection. The utility model can be suitable for the whole delivery mode with tray as unit, and each circuit breaker does not use independent carton packaging, without disassembling single package can access circuit breaker, improve the efficiency of customer assembly line.

Description

Technical Field

[0001] This utility model relates to the field of circuit breaker manufacturing technology, specifically to a collective packaging structure for circuit breakers suitable for palletized shipping. Background Technology

[0002] In the field of intelligent circuit breaker manufacturing, after the products complete production testing, they need to enter the packaging stage. The current industry practice is to place each circuit breaker in an individual cardboard box for protective packaging. This approach offers the advantage of effective isolation and protection for individual products, facilitating stacking and quantity counting. After individual box packaging, multiple boxes containing circuit breakers are typically combined and packed into a larger outer carton or stacked directly on a pallet to form shipping units, which are ultimately sent to downstream customers such as distribution cabinet assembly manufacturers.

[0003] However, as downstream customers (especially large distribution cabinet assemblers) increasingly demand higher supply chain efficiency and smoother assembly lines, some customers have explicitly requested that upstream circuit breaker manufacturers adopt a pallet-based overall shipment model. Furthermore, to improve the efficiency of their assembly lines, they prohibit each circuit breaker from being packaged in an individual box. This is because if the circuit breakers are still placed in individual boxes, assembly workers must spend a significant amount of time unpacking each box individually before they can remove the circuit breaker for assembly. This unpacking process is time-consuming in mass production, increasing labor costs and reducing overall assembly efficiency.

[0004] Completely eliminating all packaging and placing the circuit breakers directly on the pallet saves customers the unpacking step, but the products are highly susceptible to damage during transportation, handling, and stacking due to friction, collisions, or external impacts, compromising reliability. Continuing to use individual cardboard boxes, however, contradicts customers' efficiency requirements. Therefore, there is an urgent need to develop a circuit breaker packaging structure that adapts to the needs of palletized shipping and avoids individual cardboard box packaging. Utility Model Content

[0005] Purpose of the utility model: To provide a collective packaging structure for circuit breakers suitable for palletized shipping, which is applicable to the overall shipping mode based on pallets, and each circuit breaker does not use an independent cardboard box packaging. Circuit breakers can be used without disassembling individual cardboard boxes, thereby improving the efficiency of the customer's assembly line.

[0006] Technical solution: A collective packaging structure for circuit breakers suitable for palletized shipping, comprising: tray; A stack body is disposed on the tray. The stack body includes a bottom buffer support layer, at least one intermediate buffer support layer and a buffer top surface arranged from bottom to top. The buffer support layer and the intermediate buffer support layer both include a buffer frame. Multiple accommodating cavities are formed within the buffer frame by a buffer partition structure. The shape and size of the accommodating cavities are adapted to the circuit breaker. A wrapping layer, covering the stacked body; Fasteners are used to secure the stack to the tray.

[0007] A further improvement of this utility model is that the depth of the buffer frame is less than the thickness of the circuit breaker in the corresponding placement direction, and when the circuit breaker is placed in the accommodating cavity, part of its structure protrudes upward above the buffer frame.

[0008] A further improvement of this utility model is that the buffer frame of the intermediate buffer bearing layer and the lower periphery of the top surface of the buffer are both provided with downwardly extending protective edges.

[0009] A further improvement of this utility model is that the width of the receiving cavity is adapted to the width of the circuit breaker, the length is adapted to the height of the circuit breaker, and the depth is less than the length of the circuit breaker, and the circuit breaker is housed in the receiving cavity in a side-standing position.

[0010] A further improvement of this utility model is that the buffer partition structure includes a plurality of transverse partitions spaced apart along the length of the buffer frame and a plurality of longitudinal partitions spaced apart along the width of the buffer frame. The transverse partitions and longitudinal partitions are arranged to cross each other to form a plurality of accommodating cavities.

[0011] A further improvement of this utility model is that a rigid protective component is provided at the upper end of the buffer top surface, and a guide structure that cooperates with the fastener is provided on the bottom buffer bearing layer, the middle buffer bearing layer and the rigid protective component.

[0012] A further improvement of this utility model is that the bottom buffer support layer, the middle buffer support layer and the top buffer surface are all made of flexible buffer material.

[0013] A further improvement of this invention is that the flexible cushioning material is pearl cotton.

[0014] A further improvement of this invention is that the wrapping layer is a stretch film.

[0015] A further improvement of this utility model is that the fastener is a packing strap and the guide structure is a groove. Beneficial effects

[0016] This invention replaces traditional individual cardboard box packaging with a buffer support layer and a buffer top surface in the stacked structure, effectively addressing the downstream customer's requirement to avoid individual cardboard boxes and ship in whole pallets. The stacked structure consists of a bottom buffer support layer, a middle buffer support layer, and a buffer top surface. Internally, a buffer partition structure forms a receiving cavity, isolating and protecting the circuit breakers during transportation to prevent collisions and friction. Simultaneously, the wrapping layer and fasteners further ensure a stable connection between the stacked structure and the pallet, preventing displacement and scattering. Thus, while ensuring product safety, it significantly improves the efficiency of the customer's assembly line, allowing for direct access to the circuit breakers without disassembling individual cardboard boxes.

[0017] This invention designs the depth of the buffer frame to be less than the thickness of the circuit breaker, causing the circuit breaker portion to protrude from the receiving cavity. This not only maintains the side protection of the circuit breaker provided by the buffer frame, but also facilitates the quick removal of the circuit breaker, reducing the removal time and operational difficulty, further optimizing the assembly process, and improving overall efficiency.

[0018] This utility model features downward-extending protective edges on the intermediate buffer bearing layer and the top surface of the buffer layer, which enhances the coverage and protection between layers, protects the sides of the protruding part of the circuit breaker, and reduces the risk of damage due to friction or collision during transportation. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model (the protective edge of the middle buffer bearing layer is not shown in the figure).

[0020] Figure 2 This is a schematic diagram showing the placement of the circuit breaker according to this utility model.

[0021] In the diagram, 1-tray, 2-bottom buffer support layer, 3-middle buffer support layer, 4-buffer top surface, 5-accommodating cavity, 6-fastener, 7-protective edge, 8-transverse partition plate, 9-longitudinal partition plate. Detailed Implementation

[0022] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.

[0023] Example 1: Combination Figures 1-2 It is known that a collective packaging structure for circuit breakers suitable for palletized shipping includes: Tray 1; The stack body is set on the tray 1. The stack body includes a bottom buffer support layer 2, at least one intermediate buffer support layer 3 and a buffer top surface 4 arranged from bottom to top. Both the buffer support layer 2 and the intermediate buffer support layer 3 include a buffer frame. Multiple accommodating cavities 5 are formed in the buffer frame by a buffer partition structure. The shape and size of the accommodating cavity 5 are adapted to the circuit breaker. Encapsulation layer, covering the stacked body; Fastener 6 secures the stack to tray 1.

[0024] Preferably, the stack comprises a bottom buffer support layer 2, four intermediate buffer support layers 3, and a top buffer surface 4.

[0025] The depth of the buffer frame is less than the thickness of the circuit breaker in the corresponding placement direction (e.g., the depth is 10mm-40mm less than the thickness of the circuit breaker). When the circuit breaker is placed in the receiving cavity 5, part of its structure protrudes upward above the buffer frame. When multiple layers are stacked, the protruding part directly supports the intermediate buffer bearing layer 3 or the buffer top surface 4 above it.

[0026] It should be noted that as an industrial product, the circuit breaker's casing structure (usually made of high-strength engineering plastic) possesses sufficient compressive strength. Its design already takes into account the mechanical stress it will withstand during installation and use, and it has sufficient structural strength to withstand reasonable stacking loads. Simultaneously, the load-bearing frame made of flexible buffer material closely conforms to the sides of the circuit breaker and distributes some of the pressure, together forming a stable support system.

[0027] The original cardboard box packaging for circuit breakers was also shipped by stacking. The vertical support provided by the side walls of the cardboard box was limited, mainly serving to isolate and buffer impacts. Most of the stacking pressure was actually transmitted and borne by the circuit breaker itself. The structural strength of the circuit breaker body was sufficient to safely withstand the stacking pressure of this packaging, so there was no additional risk of damage to the product quality.

[0028] The buffer frame of the intermediate buffer bearing layer 3 and the lower periphery of the buffer top surface 4 are both provided with downwardly extending protective guards 7 to protect the protruding sides of the circuit breaker.

[0029] The width of the receiving cavity 5 is adapted to the width of the circuit breaker, the length is adapted to the height of the circuit breaker, and the depth is less than the length of the circuit breaker. The circuit breaker is housed in the receiving cavity 5 in a side-standing position.

[0030] For medium and large-sized intelligent circuit breakers, the front side usually houses relatively fragile components such as the operating panel and display screen. Placing them on their side allows the operating panel to face to the side, avoiding direct pressure from above during stacking and reducing the risk of panel damage. Furthermore, the side structure of circuit breakers is usually more regular and the shell support strength is higher (for example, the side is often an integral shell surface or a structure with reinforcing ribs). Using it as the main pressure-bearing surface is more conducive to the even distribution of force and stable stacking.

[0031] The buffer separation structure includes multiple transverse partitions 8 spaced apart along the length of the buffer frame and multiple longitudinal partitions 9 spaced apart along the width of the buffer frame. The transverse partitions 8 and longitudinal partitions 9 are intersected (e.g., fixed by slots or adhesive) to form multiple receiving cavities 5. This allows each circuit breaker to be independently isolated, effectively preventing mutual collisions and shaking during transportation. This structure is simple, reliable, easy to manufacture and customize, provides uniform cushioning support, and enhances the overall protective performance of the packaging.

[0032] The upper end of the buffer top surface 4 is provided with a rigid protective component (such as made of cardboard, corrugated cardboard or thin plastic sheet), and the bottom buffer bearing layer 2, the middle buffer bearing layer 3 and the rigid protective component are provided with a guide structure that cooperates with the fastener 6.

[0033] Preferably, the fastener 6 is a packing strap with a groove as the guide structure. The grooves are set at corresponding positions on each layer and are aligned to form a channel after stacking. This ensures that the packing strap is tightly fixed under the guidance of the grooves, preventing displacement or loosening during transportation. The groove structure also avoids the packing strap from cutting and damaging the cushioning material, improving the safety and durability of the fastening and ensuring the stability of the entire packaging unit during logistics.

[0034] The bottom buffer layer 2, the middle buffer layer 3, and the top buffer surface 4 are all made of flexible buffer material. Preferably, the flexible buffer material is EPE foam. It can effectively absorb vibration and impact energy, reducing the risk of damage to the circuit breaker during transportation and handling. The flexible material is also easy to process and adapt to different circuit breaker shapes, providing excellent customization and protection. EPE foam is lightweight, flexible, impact-resistant, and environmentally friendly and recyclable, which not only reduces packaging weight and transportation costs but also provides excellent cushioning performance.

[0035] Pallet 1 is a standard freight pallet made of wood or plastic, used to carry the entire package unit and facilitate forklift handling.

[0036] Preferably, the wrapping layer is a stretch film. In use, the stretch film is wrapped around the stacked body in multiple layers (e.g., 3-8 layers) with a certain tension. The stretch film can tightly wrap the stacked body, prevent dust and moisture from entering, and provide additional binding force to maintain the integrity of the stacked body. Its transparency facilitates visual inspection and is easy to remove quickly without affecting the efficiency of circuit breaker retrieval, thus improving the practicality and convenience of the packaging.

[0037] The working principle of the circuit breaker collective packaging structure suitable for palletized shipping provided by this utility model is as follows: In use, the circuit breaker is first placed sideways in the receiving cavity 5 of the bottom buffer support layer 2, which is made of flexible cushioning material (such as pearl cotton). The receiving cavity 5 is formed by the intersection of horizontal partitions 8 and vertical partitions 9, ensuring that each circuit breaker is independently isolated and the operating panel faces to the side. Then, depending on the stacking height requirements, one or more intermediate buffer support layers 3 are placed, with circuit breakers placed on each layer and aligned with the lower layer by the protective edge 7. After stacking to the predetermined number of layers, the buffer top surface 4 with the aforementioned rigid protective component is installed. Next, the entire stack is tightly wrapped with a wrapping layer (such as stretch film). Finally, the stack is securely connected to the pallet 1 from top to bottom using fasteners 6 (such as packing straps) to form a stable transport unit. The circuit breaker is effectively cushioned and protected during transportation, avoiding collision damage. After receiving the product, the customer does not need to disassemble the individual packaging; they only need to remove the wrapping layer and fasteners to quickly and easily remove the circuit breaker from the buffer support layer of the stack for assembly, thus balancing product protection and assembly efficiency.

[0038] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent transformations or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

[0039] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Any equivalent structural or process transformations made using the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

[0040] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

Claims

1. A collective packaging structure for circuit breakers suitable for palletized shipping, characterized in that, include: Tray (1); A stack body is disposed on the tray (1). The stack body includes a bottom buffer support layer (2), at least one intermediate buffer support layer (3), and a buffer top surface (4) arranged from bottom to top. The buffer support layer (2) and the intermediate buffer support layer (3) both include a buffer frame. Multiple accommodating cavities (5) are formed in the buffer frame by a buffer partition structure. The shape and size of the accommodating cavity (5) are adapted to the circuit breaker. The depth of the buffer frame is less than the thickness of the circuit breaker in the corresponding placement direction. When the circuit breaker is placed in the accommodating cavity (5), part of its structure protrudes upward above the buffer frame. A wrapping layer, covering the stacked body; Fasteners (6) secure the stack to the tray (1).

2. The circuit breaker collective packaging structure suitable for palletized shipping according to claim 1, characterized in that: The buffer frame and the lower periphery of the buffer top surface (4) of the intermediate buffer bearing layer (3) are provided with downward extending protective edges (7).

3. The circuit breaker collective packaging structure suitable for palletized shipping according to claim 1, characterized in that: The width of the receiving cavity (5) is adapted to the width of the circuit breaker, the length is adapted to the height of the circuit breaker, and the depth is less than the length of the circuit breaker. The circuit breaker is housed in the receiving cavity (5) in a side-standing position.

4. The circuit breaker collective packaging structure suitable for palletized shipping according to claim 1, characterized in that: The buffer partition structure includes multiple transverse partitions (8) spaced apart along the length of the buffer frame and multiple longitudinal partitions (9) spaced apart along the width of the buffer frame. The transverse partitions (8) and longitudinal partitions (9) are intersected to form multiple accommodating cavities (5).

5. A circuit breaker collective packaging structure suitable for palletized shipping according to claim 1, characterized in that: The upper end of the buffer top surface (4) is provided with a rigid protective component, and the bottom buffer bearing layer (2), the middle buffer bearing layer (3) and the rigid protective component are provided with a guide structure that cooperates with the fastener (6).

6. A circuit breaker collective packaging structure suitable for palletized shipping according to claim 1, characterized in that: The bottom buffer support layer (2), the middle buffer support layer (3) and the top buffer surface (4) are all made of flexible buffer material.

7. A circuit breaker collective packaging structure suitable for palletized shipping according to claim 6, characterized in that: The flexible cushioning material is pearl cotton.

8. A circuit breaker collective packaging structure suitable for palletized shipping according to claim 1, characterized in that: The wrapping layer is a stretch film.

9. A circuit breaker collective packaging structure suitable for palletized shipping according to claim 5, characterized in that: The fastener (6) is a packing strap, and the guide structure is a groove.

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